Quote Originally Posted by Graphic View Post
Do you know if GTX 260 supports DX 10.1? For some reason its been hard for me to find out. Also, if it requires a service pack with Vista.
Drone already answered, but here is a handy chart with the basic data for most NVidia cards commonly in use: (DX is shown in the last column)

http://www.hardwaresecrets.com/article/132

Here is a chart at the same site for ATI cards:

http://www.hardwaresecrets.com/article/131

Cheers